1995 Oldsmobile Achieva fuel additives

NOTICE:
If you try to do your own service work without
knowing enough about it, your vehicle could be
damaged.
Fuel
Use regular unleaded gasoline rated at 87 octane or
higher. It should meet specifications ASTM
D4814 in
the United States and CGSB 3.5-92 in Canada. These
fuels should have the proper additives,
so you should not
have to add anything to the fuel.
In the United States and Canada, it’s easy to be sure you \
get the right kind
of gasoline (unleaded). You’ll see
UNLEADED right on the pump. And only unleaded
nozzles will fit into your vehicle’s filler neck.
Be sure the posted octane is at least
87. If the octane is
less than
87, you may get a heavy knocking noise when
you drive.
If it’s bad enough, it can damage your engine.
If you’re using fuel rated at 87 octane or higher and you
still hear heavy knocking, your engine needs service.
But don’t worry if you hear a little pinging noise when
you’re accelerating
or driving up a hill. That’s normal,
and you don’t have to buy a higher octane fuel to get rid\

of pinging. It’s the heavy, constant knock that means
you have a problem.
6-2

What about gasoline with blending materials that contain oxygen (oxygenates), such as MTBE or alcohol?
MTBE is “methyl tertiary-butyl ether.” Fuel that is no
more than
15% MTBE is fine for your vehicle.
Ethanol is ethyl or grain alcohol. Properly-blended fuel
that is no more than
10% ethanol is fine for your
vehicle.
Methanol is methyl or wood alcohol.
I I
I NOTICE:
Fuel that is more than 5% methanol is bad for
your vehicle. Don’t use it. It can corrode metal
parts in your fuel system and
also damage plastic
and rubber parts. That damage wouldn’t be
covered under your warranty. And even at
5% or
less, there must be “cosolvents” and corrosion
preventers in this fuel to help avoid these
problems.
Gasolines for Cleaner Air
Your use of gasoline with deposit control additives will
help prevent deposits from forming in your engine and
fuel system. That helps keep your engine in tune and
your emission control system working properly. It’s
good for your vehicle, and you’ll be doing your part for
cleaner
air.
Many gasolines are now blended with oxygenates. General Motors recommends that you use gasolines with
these blending materials, such as MTBE and ethanol. By doing
so, you can help clean the air, especially in those
parts of the country that have high carbon monoxide
levels.
In addition, some gasoline suppliers are now producing
reformulated gasolines. These gasolines
are specially
designed to reduce vehicle emissions. General Motors
recommends that you use reformulated gasoline. By doing so, you can help clean the air, especially in those
parts of the country that have high ozone levels.
You should ask your service station operators
if their
gasolines contain deposit control additives and
oxygenates, and
if they have been reformulated to
reduce vehicle emissions.
6-3

RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS
FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST
SAE VISCOSITY GRADE
OIL FOR THE EXPE( 1 TEMPERATURE RANGE.
HOT
WEATHER
,-
I I
+100-4+38
i
I +6O-A+16
+40--+4
+20--’-7
0---I8
I ~
,/
COLD
WEATHER
WOK
FOR MIS
SYMBOL
I
‘-30 REO
DO NOT USE SAE 2OW-50 OR ANY OTHER
GRADE OIL NOT RECOMMENDED
-
As shown in the chart, SAE 5W-30 is best for your
vehicle. However, you can use
SAE 1OW-30 if it’s going
to be 0°F (- 1 8 “C) or above. These numbers on an oil
container
show its viscosity, or thickness. Do not use
other viscosity oils, such as
SAE 20W-SO.
NOTICE:
Use only engine oil with the American Petroleum
Institute Certified For Gasoline Engines
“Starburst” symbol. Failure
to use the proper oil
can result in engine damage not covered by your
warranty.
I I
GM Goodwrench@ oil (in Canada, GM Engine Oil)
meets all the requirements
for your vehicle.
Engine Oil Additives
Don’t add anything to your oil. Your Oldsmobile retailer
is ready
to advise if you think something should be
added.
6-14

Damage. Finish ............................... 6-48
Damage. Sheet Metal ............................ 6-48
Daytime Running Lamps
......................... 2-44
Dead Battery
................................... 5-2
Defects. Reporting ............................... 8-4
Defensive Driving
................................ 4- I
Defogger. Rear W~ndow .......................... 3-4
Defogging
..................................... 3-2
Defrosting
..................................... 3-2
Locks
...................................... 2-3
Locks. Power
................................ 2-4
Driver Position
................................. 1 - I2
Driving On Grades . With a Trailer .................. 4-37
Driving
Door
AtNight ................................... 4-13
City
....................................... 4-17
Defensive
................................... 4- I
Drunken .................................... 4- 2.
Freeway .................................... 4-18
In a Blizzard ................................ 4-25
In Foreign Countries ........................... 6-4
In the Rain .................................. 4- 14
OnCurves ................................... 4-8
On Hill and Mountain Roads
................... 4-2 I
On Snow and Ice ............................. 4-23
Through Deep Standing Water
.................. 2- I7
Winter ..................................... 4-22
With
a Tsailer ............................... 4-35
Drunken Driving
................................ 4-2
Easy-Entry Seat ................................
Elect;-ical Eyuipment. Adding ........... 2- 16. 3- IS. 6-50
Adding
............................... 5- 1 2. 6-23
Checkmg
................................... 6-23
Heater
................................ 2- 17. 6- 15
Low Coolant Level Warning Light ............... 2-65
Temperature
Gage ............................ 2-64
Temperature Warning Light
.................... 2-64
Cooling System
.............................. 6-54
Exhallst
.................................... 2-30
Identification
................................ 6-50
Lubrication System Chart
...................... 6-54
Overheating
................................. 5-12
Specifications
............................... 6-57
Starting
................................. 2-15. 16
2.3 L ............................ 2- IS. 6-9.54. 57
3.1 L ........................... 2-16.6-10,54,57
Engineoil .................................... 6-11
Adding .................................... 6-12
Additives ................................... 6-14
Checking
................................... 6-11
Warning Light ............................ 2-67. 68
What Kind to
Use ............................ 6-13
What to do
with Used Oil ...................... 6-15
When
to Change ............................. 6-15
Ethanol (In Fuel) ................................ 6-3
Exhaust . Engine ................................ 2-30
Engine Coolant
c
Engine
Running
it While You’re Parked ................. 2-31
9-4